Answer:
16 girls
Step-by-step explanation:
If the ratio Is b:g, then we can assume the majoraty are boys.
If we look at the factors for these numbers, it goes like this: 5, 10, 15, 20, 25 for 4, we get 4, 8, 12, 16, 20, 24. If you look at the fourth factor, 20, and 16, then you can see that they add up to 36.